#elliptic-curve

no-std ark-bls12-381-ext

Extensions for the BLS12-381 pairing-friendly elliptic curve

1 unstable release

0.4.1 Oct 27, 2023

#649 in Cryptography

Download history 28961/week @ 2024-07-02 24904/week @ 2024-07-09 35137/week @ 2024-07-16 38066/week @ 2024-07-23 29569/week @ 2024-07-30 37647/week @ 2024-08-06 42756/week @ 2024-08-13 31541/week @ 2024-08-20 42846/week @ 2024-08-27 47433/week @ 2024-09-03 39864/week @ 2024-09-10 39171/week @ 2024-09-17 39572/week @ 2024-09-24 42503/week @ 2024-10-01 38030/week @ 2024-10-08 30307/week @ 2024-10-15

159,116 downloads per month
Used in 4 crates (3 directly)

MIT/Apache

465KB
1K SLoC

This library implements the BLS12_381 curve generated by Sean Bowe. The name denotes that it is a Barreto--Lynn--Scott curve of embedding degree 12, defined over a 381-bit (prime) field. This curve was intended to replace the BN254 curve to provide a higher security level without incurring a large performance overhead.

Curve information:

  • Base field: q = 4002409555221667393417789825735904156556882819939007885332058136124031650490837864442687629129015664037894272559787
  • Scalar field: r = 52435875175126190479447740508185965837690552500527637822603658699938581184513
  • valuation(q - 1, 2) = 1
  • valuation(r - 1, 2) = 32
  • G1 curve equation: y^2 = x^3 + 4
  • G2 curve equation: y^2 = x^3 + Fq2(4, 4)

Dependencies

~5.5MB
~101K SLoC